BQ24770 Series
SMBus 1-4 cell NVDC Buck battery charge controller with system monitor & processor hot indicator
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
SMBus 1-4 cell NVDC Buck battery charge controller with system monitor & processor hot indicator
| Part | Function | Interface | Operating Temperature [Max] | Operating Temperature [Min] | Supplier Device Package | Battery Chemistry | Mounting Type | Package / Case | Utilized IC / Part | Type | Supplied Contents |
|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments BQ24770RUYT | Multi-Function Controller | SMBus | 85 °C | -40 °C | 28-WQFN (4x4) | Multi-Chemistry | Surface Mount | 28-WFQFN Exposed Pad | |||
Texas Instruments BQ24770EVM-540 | Battery Charger | BQ24770 | Power Management | Board(s) | |||||||
Texas Instruments BQ24770RUYR | Multi-Function Controller | SMBus | 85 °C | -40 °C | 28-WQFN (4x4) | Multi-Chemistry | Surface Mount | 28-WFQFN Exposed Pad |
Key Features
• Host-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input RangeSupport SMBus (bq24770) and I2C (bq24773)System Instant-on Operation with no Battery or Deeply Discharged BatterySupplement Mode with Synchronous BATFET Control when Adaptor is fully loadedUltra Fast Input Current DPM at 100 µsUltra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6.High Accuracy Power / Current Monitor for CPU ThrottlingComprehensivePROCHOTProfileInput and Battery Current Monitor (IADP/IBAT)System Power Monitor (PMON)Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation±0.5% Charge Voltage (16 mV/step)±2% Input/charge Current (64 mA/step)±2% 40x Input / 16x Discharge / 20x Charge Current MonitorSupport Battery LEARN FunctionHigh IntegrationNMOS ACFET and RBFET DriverPMOS battery FET Gate DriverInternal Loop CompensationIndependent ComparatorAutomatic Trickle Charge to Wake up Gas Gauge600kHz to 1.2MHz Programmable Switching FrequencyHost-controlled NVDC-1 1S-4S Battery Charge Controller with 4.5-24 V Input RangeSupport SMBus (bq24770) and I2C (bq24773)System Instant-on Operation with no Battery or Deeply Discharged BatterySupplement Mode with Synchronous BATFET Control when Adaptor is fully loadedUltra Fast Input Current DPM at 100 µsUltra Low Quiescent Current of 600 µA and High PFM Light Load Efficiency >80% at 20 mA Load to Meet Energy Star and ErP Lot6.High Accuracy Power / Current Monitor for CPU ThrottlingComprehensivePROCHOTProfileInput and Battery Current Monitor (IADP/IBAT)System Power Monitor (PMON)Programmable Input Current Limit, Charge Voltage, Charge Current and Minimum System Voltage Regulation±0.5% Charge Voltage (16 mV/step)±2% Input/charge Current (64 mA/step)±2% 40x Input / 16x Discharge / 20x Charge Current MonitorSupport Battery LEARN FunctionHigh IntegrationNMOS ACFET and RBFET DriverPMOS battery FET Gate DriverInternal Loop CompensationIndependent ComparatorAutomatic Trickle Charge to Wake up Gas Gauge600kHz to 1.2MHz Programmable Switching Frequency
Description
AI
The bq2477x is high-efficiency, synchronous, NVDC-1 battery charge controllers, offering low component count for space-constraint, multi-chemistry battery charging applications.
The power path management allows the system to be regulated at battery voltage but does not drop below system minimum voltage (programmable). With this feature, the system keeps operating even when the battery is completely discharged or removed. The power path management allows the battery to provide supplement current to the system to keep the input supply from being overloaded.
The bq2477x provides drivers and power path management for N-channel ACFET and reverse blocking FET. The devices provides driver to control NVDC operation of external P-channel battery FET. It also drives high-side and low-side MOSFETs of the switching regulator.
The bq2477x monitors adapter current (IADP), battery charge/discharge current (IBAT) and system power (PMON). The flexibly programmedPROCHOToutput goes directly to CPU for throttle back when needed.
The bq2477x is high-efficiency, synchronous, NVDC-1 battery charge controllers, offering low component count for space-constraint, multi-chemistry battery charging applications.
The power path management allows the system to be regulated at battery voltage but does not drop below system minimum voltage (programmable). With this feature, the system keeps operating even when the battery is completely discharged or removed. The power path management allows the battery to provide supplement current to the system to keep the input supply from being overloaded.
The bq2477x provides drivers and power path management for N-channel ACFET and reverse blocking FET. The devices provides driver to control NVDC operation of external P-channel battery FET. It also drives high-side and low-side MOSFETs of the switching regulator.
The bq2477x monitors adapter current (IADP), battery charge/discharge current (IBAT) and system power (PMON). The flexibly programmedPROCHOToutput goes directly to CPU for throttle back when needed.